• Title/Summary/Keyword: platelet anti-aggregation

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Experimental Study on Anti-thrombotic and Anti-inflammatory Effect of Kami-BoyangHwanoh-Tang (가미보양환오탕(加味補陽還五湯)의 항혈전(抗血栓) 및 항염작용(抗炎作用)에 대한 실험적 연구)

  • Lee, Jung-Eun;Yoo, Dong-Youl
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.4
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    • pp.957-965
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    • 2006
  • This study was peformed to evaluate antithrombotic activities and anti-inflammatory effects of Kami-BoyangHwanoh-Tang(KBHT). The major findings were summarized as follows. In experiment of anti-thrombotic effect; KBHT inhibited human platelet aggregation induced by ADP and epinephrine as compared with the control group and inhibited pulmonary embolism induced by collagen and epinephrine (inhibitory rate is 50 %). KBHT increased platelet number significantly and also KBHT shortened PT and APTT significantly as compared with the control group in thrombus model induced by dextran. In experiment of anti-inflammatory effect; KBHT inhibited $IL-1{\beta}$, IL-6, $TNF-{\alpha}$, COX-2 and NOS-II mRNA expression as compared with the control group in a concentration-dependent degree, and inhibited NO production significantly at 50, $100\;{\mu}g/^{ml}$, and also inhibited ROS production in a concentration-dependent degree as compared with the control group in RAW 264.7 cell line. KBHT inhibited $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ production significantly in serum of acute inflammation-induced mice, and decreased $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ production in spleen tissue, and also decreased IL-6 and $TNF-{\alpha}$ production in liver tissue, but increased $IL-1{\beta}$ production in liver tissue of acute inflammation-induced mice. KBHT increased survival rate at 3rd day in mice with lethal endotoxemia induced by LPS. These results suggest that KBHT can be useful in treating diverse female diseases caused by thrombosis and inflammation such as endometrosis, myoma, pelvic congestion, chronic cervicitis, chronic pelvic inflammatory disease and so on.

Effect of Silsosangami on Neutrophil Functions and Cyclo-oxygenase-2

  • Kim Chang Hwan;Park Won Hwan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.16 no.5
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    • pp.1048-1054
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    • 2002
  • Silsosangami(SSG) is a formula of oriental medicines as an effective biological response modifier for augmenting host homeostasis of body circulation. Also SSG has been known to have an anti-diabetic activity and anti-platelet aggregation activity. The present study was undertaken to examine the effects of a new SSG on murine macrophage and human neutrophil functions as well as on several enzymes relevant to the inflammatory process. The results of the present study indicate that SSG exerts anti-inflammatory effects related to the inhibition of neutrophil functions and of PGE2 production, which could be due to a decreased expression of and COX-2.

The Study on Antithrombosis and Inflammation according to The Broth Preparation Method of Gamijoukyungtang (가미조경탕(加味調經湯)의 전탕(煎湯) 방법에 따른 항혈전 및 염증에 관한 연구)

  • Ahn, Kyu-Hwan;Choe, Chang-Min;Kim, Song-Baeg;Cho, Han-Baek
    • The Journal of Korean Obstetrics and Gynecology
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    • v.22 no.1
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    • pp.53-78
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    • 2009
  • Purpose: In this study, we investigated the anti-thrombotic and antiinflammatory efficacy of "Gamijoukyungtang(GJKT)". Methods: We studied inhibitory effects of platelet aggregation, FXa activation, $TXB_2$ and $PGE_2$ biosynthesis and suppressive effects of GPIIb/IIIa activity and oxidative damage, pro-inflammatory cytokine reduction effects of 'GJKT(by press extractor)/GJKT-1(by pressless extractor)' in vitro. Also, we studied suppression of pulmonary embolism, AV shunt model in rats and shortening of Rat tail bleeding time in vivo. Results: GJKT/GJKT-1 extract showed inhibitory effects on GPIIb/IIIaactivities and platelet aggregation induced by ADP, epinephrine, collagen and arachidonic acid. They suppressed biosynthesis of $PGE_2$ but GJKT-1 only supressed biosynthesis of $TXB_2$. In FXa assay, they inhibited activation of FXa. they suppressed pulmonary embolism triggered by collagen and epinephrine. In AV shunt model, they decreased the weights of AV shunt thrombus. they inhibited pro-inflammatory cytokines and decreased oxidative damages caused by DPPH. Conclusion: We confirmed the anti-thrombosis, and ant-inflammatory efficacy of 'GJKT(by press extractor)/GJKT-1(by pressless extractor)'.

Antithrombotic Compounds form the Leaves of Ligularia stenocephala M.

  • Yoon, Min-Ho;Cho, Chong-Woon;Lee, Jae-Won;Kim, Young-Shin;An, Gil-Hwan;Lim, Chi-Hwan
    • Natural Product Sciences
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    • v.14 no.1
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    • pp.62-67
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    • 2008
  • The leaf extract of Ligularia stenocephala showed the highest anti-platelet aggregating activity in large numbers of edible and herbal plants. The active fraction fractionationed from L. stenocephala extract by using preparative HPLC inhibited the platelet aggregation up to above 80% and its blood coagulating time (PT and APTT) also showed similar effect to aspirin (0.2 ${\mu}g/mL$), known as an anti-thrombus compound. Two antithrombus active compounds were purified and identified as 3,5-dicaffeoylquinic acid and 3,4-dicaffeoylquinic acid, respectively, on the basis of NMR and FAB-MS spectroscopic data. Two active compounds has not only antiplatelet aggregating activity, but also has anticoagulating activity.

Intestinal Bacterial Metabolism of Flavonoids and Its Relation to Some Biological Activities

  • Kim, Dong-Hyun;Jung, Eun-Ah;Sohng, In-Suk;Han, Jung-Ah;Kim, Tae-Hyung;Han, Myung-Joo
    • Archives of Pharmacal Research
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    • v.21 no.1
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    • pp.17-23
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    • 1998
  • Flavonoid glycosides were metabolized to phenolic acids via aglycones by human intestinal microflora producing ${\alpha}$-rhamnosidase, exo-${\beta}$-glucosidase, endo- ${\beta}$-glucosidase and/or ${\beta}$-glucuronidase. Rutin, hesperidin, naringin and poncirin were transformed to their aglycones by the bacteria producing ${\alpha}$-rhamnosidase and ${\beta}$-glucosidase or endo- ${\beta}$-glucosidase, and baicatin, puerarin and daidzin were transformed to their aglycones by the bacteria producing ${\beta}$glucuronidase, C-glycosidase and ${\beta}$-glycosidase, respectively. Anti-platelet activity and cytotoxicity of the metabolites of flavonoid glycosides by human intestinal bacteria were more effective than those of the parental compounds. 3,4-Dihydroxyphenylacetic acid and 4-hydroxyl-phenylacetic acid were more effective than rutin and quercetin on anti-platelet aggregation activity. 2,4,6-Trihydroxybenzaidehyde, quercetin and ponciretin were more effective than rutin and ponciretin on the cytotoxicity for tumor cell lines. We insist that these flavonoid glycosides should be natural prodrugs.

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Screening of Antioxidative, Anti-thrombotic and Anti-atherosclerotic Effects of Moutan Root Bark Extracts (Moutan Root Bark가 항산화활성과 LDL 산화 억제 및 항철소판 응접에 미치는 영향)

  • Ban, Chang-Kye;Lee, Min-Ja;Lee, Hye-Sook;Jung, Hyun-Jung;Kim, Hyuck;Kim, Jai-Eun;Park, Sun-Dong;Park, Won-Hwan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.1
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    • pp.135-143
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    • 2009
  • There is currently increased interest in the identification of antioxidant compounds that are pharmacologically potent and have low or no side effects. Plants produce significant amounts of antioxidants to prevent the oxidative stress caused by photons and oxygen, therefore they represent a potential source of new compounds with antioxidant activity. Moutan Root Sark (MRS) has been frequently used as analgesic. antispasmodic, anti-inflammatory and remedies for female diseases. In this study. the antioxidant activity of extract from MRS was studied in vitro methods by measuring the antioxidant activity by TEAC, measuring the scavenging effects on reactive oxygen species (ROS) [superoxide anion, hydroxyl radical] and on reactive nitrogen species (RNS) [nitric oxide and peroxynitrite] as well as measuring the inhibitory effect on $Cu^{2+}$ induced human LDL oxidation and the inhibitory effect on collagen induced platelet aggregation. The MRS extracts were found to have a potent scavenging activity, as well as an inhibitory effect on LDL oxidation and on platelet aggregation. In conclusion, the MRS extracts have anti-oxidative and anti-atherosclerotic effects in vitro system, which can be used for developing pharmaceutical drug against oxidative stress and atherosclerosis.

Evaluation of the Anti-thrombosis Activities of the Aerial Parts of Sageretia thea (상동나무 지상부의 항혈전 활성)

  • Pyo, Su-Jin;Lee, Yun-Jin;Park, Seong-Ik;Lee, Chang-Il;Park, Jong-Yi;Sohn, Ho-Yong
    • Journal of Life Science
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    • v.30 no.5
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    • pp.443-451
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    • 2020
  • Recently, thrombotic diseases have become rapidly more prevalent due to Westernized lifestyles and high-fat diets. In this study, the anti-thrombosis activities of the aerial parts of Sageretia thea were evaluated using ethanol extracts of the leaf (ST-L), branch (ST-B), and fruit (ST-F), and their anti-coagulation, platelet aggregation inhibition, and hemolytic toxicity were assessed. In comparison to the ST-F extract, the ST-B exhibited 6.7 times more polyphenol content, and the ST-L had 2.7 times more total flavonoid content. The ST-L and ST-B extracts showed stronger inhibitions of thrombin, prothrombin, and blood coagulation factors than aspirin, berry extracts, or commercial oriental herbs. Furthermore, ST-L and ST-B showed superior platelet aggregation-inhibitory activities than aspirin. The ST-F extract demonstrated only minor anti-thrombosis effects, and none of the extracts showed hemolysis against red blood cells up to 1 mg/ml. Phenolic acid and flavonoid analysis of the ST-L and ST-B extracts showed abundant rutin, isoquercitrin, and astragalin as the major active compounds. Further research on the anti-thrombotic activity of isoquercitrin, a rare flavonoid from quercetin, is necessary. This is the first report of isoquercitrin in Sageretia thea, and our results suggest that ST-L and ST-B extracts could therefore developed as anti-thrombosis agents.

Anti-oxidation and Anti-thrombosis Activities of Polyphenol-enriched Fraction of Acorn Pollen Extract (도토리 화분 추출물의 폴리페놀 고함유 분획물의 항산화 및 항혈전 활성)

  • Lee, Yun-Jin;Kang, Deok-Gyeong;Pyo, Su-Jin;Sohn, Ho-Yong
    • Journal of Life Science
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    • v.32 no.7
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    • pp.501-509
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    • 2022
  • Pollen corrected from Quercus species is abundant in Korea and has been used to treat anemia and inflammation of the prostate gland. It is also used for hemostasis in oriental medicine. In this study, the ethanol extract of the acorn pollen and its subsequent organic solvent fractions using hexane, ethylacetate, butanol, and water residue were prepared, and their antioxidant, anti-thrombosis, and hemolysis activities were evaluated. The ethylacetate fraction of acorn pollen (EF-AP) showed the highest polyphenol content (225.0 mg/g) and strong antioxidant activity among the solvent fractions. The RC50 of EF-AP against DPPH, ABTS, and nitrite radicals was 72.2, 27.7, and 62.6 ㎍/ml, respectively. The blood coagulation activities of the all-solvent fractions determined by thrombin time, prothrombin time, and activated partial thromboplastin time were negligible up to 5 mg/ml. Platelet aggregation inhibitory activities were observed in the EF-AP, butanol fraction, and water residue, whereas hexane fraction induced strong platelet aggregation. The EF-AP has no hemolysis activity against human RBC up to 1 mg/ml. UPLC/MS/MS analysis of the EF-AP revealed that rutin, isoquercitrin, and astragalin are major compounds for antioxidant and anti-thrombosis activities. Our results suggest that EF-AP could be developed as a noble antioxidant and anti-thrombosis agent.

Anti-coagulation and Platelet Aggregation Inhibitory Activities of the Ethanol Extract of Aerial Bulbils of Dioscorea alata L. (열대마 영여자 추출물의 항응고 및 혈소판 응집저해 활성)

  • Su-Gyeong Jeon;So-Young Choe;Kyung-Ran Im;Jong-Pil Lee;Jun-Hong Park;Ho-Yong Sohn
    • Journal of Life Science
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    • v.34 no.3
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    • pp.153-159
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    • 2024
  • Dioscorea alata L, commonly known as "tropical yam" is the most widely consumed yam species among the 650 yam species belonging to the Dioscoreacea family. It is extensively cultivated in tropical and subtropical regions and is a major food source in Africa and India. Also, it is used for medicinal purposes, particularly in China and Taiwan, for its anti-inflammatory properties. In comparison to other yam varieties such as D. batatas or D. opposita, the tropical yam has gained popularity in Korea due to its higher yield per unit area. In this study, the nutritional characteristics and anti-thrombosis activity of the aerial bulbils of D. alata L. tropical yam were compared to those of D. opposita. The results showed that the aerial bulbils of tropical yam exhibited nutritional characteristics and potent anticoagulant activity compared to those of domestic yam varieties. The bulbils extract of tropical yam showed superior anticoagulant activities against thrombin, prothrombin and blood coagulation factors. Furthermore, the bulbils extract of tropical yam exhibited strong platelet aggregation inhibition at 0.25 mg/ml and showed no hemolytic activity up to a concentration of 2.5 mg/ml. These findings suggest the potential development of high-value anti-thrombosis agents utilizing the aerial bulbils of tropical yam.

A review on Phytochemistry and pharmacological Activities of Cirsium setidens (Dunn) Nakai (고려엉겅퀴(Cirsium setidens (Dunn) Nakai)의 구성성분 및생리활성에 관한 리뷰)

  • MiAe Cho;Bumjung Kim
    • The Korea Journal of Herbology
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    • v.38 no.4
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    • pp.31-43
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    • 2023
  • Objectives : The objective of this study was to investigate the phytochemistry and pharmacological activities of Cirsium setidens. Methods : Domestic and international articles about Cirsium setidens were investigated. A review was perfoemed via DB searching engine such as Sci.Direct, Springer, DBpia, KISS, Google scholar, Kipris, and so on. Total 73 listed literature were classified by compound analysis and pharmacological efficacy. Results : C. setidens contains pectolinarin and its glycoside, pectolinarigenin as index compounds, and linarin, apigenin, diosmetin, scopoletin, acacetin, cirsimarin, cirsimaritin, setidenosides A and B, silymarin, hispidulin, 92 volatile compounds, and 15 fatty acids. The Pharmacological activities of C. setidens has been reported to inhibit of platelet aggregation and fat accumulation in the liver, inhibit to hepatitis, anti-cancer, antibacterial, skin improvement, hair growth, liver protection, anti-diabetic, anti-inflammatory, sedative. Also, It has been reported the effect of cholesterol-lowering and anti-obesity, neuroprotective effects, increasing human stem cell viability, inhibiting osteoclast formation and osteogenic differentiation. Conclusion : This reviews showed that C. setidens which has been traditionally used for the treatment of inflammation and hypertension, has anticancer and river protective effect, as well as hair loss and diet. In order to maximize the efficacy of C. setidens, research has also begun on the effect of processing processes such as fermentation or fine powdering and combining natural plant resources.